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Mutual Coupling Compensation in Receiving Arrays and Its Implementation on Software Defined Radios

机译:接收阵列中的相互耦合补偿及其在软件定义无线电上的实现

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摘要

Mutual coupling is compensated in a four elementuniform linear receiving array using software defined radios.Direction of arrival (DoA) is estimated in real-time for the arraywith spacing d==4. The decoupling matrix was measured usinga VNA for only one incident angle. After compensation the errorin DoA estimation was reduced to 5%. Comparing the DoA resultswith d==2 spaced Uniform Linear Array (ULA), 1:2% errorwas observed. Although, the experiment was performed indoorswith a low SNR, the results show a substantial improvement inthe estimated DoA after compensation.
机译:相互耦合在四个元素中得到补偿 使用软件定义的无线电的均匀线性接收阵列。 阵列实时估计到达方向(DOA) 间距d == 4。 使用去耦矩阵使用 只有一个入射角的VNA。 补偿错误后 在DOA估计减少到5%。 比较DOA结果 使用D == 2间隔均匀的线性阵列(ULA),1:2%误差 被观测到。 虽然,实验在室内进行 随着SNR低,结果显示出大量改进 赔偿后估计的DOA。

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